ClarkCleanImageSkyModel.h

Classes

ClarkCleanImageSkyModel -- Clark Image Sky Model: Image Sky Model implementing the Clark Clean algorithm (full description)

class ClarkCleanImageSkyModel : public CleanImageSkyModel

Interface

Public Members
ClarkCleanImageSkyModel() : itsProgress(0)
~ClarkCleanImageSkyModel()
virtual Bool solve (SkyEquation& me)
SubLattice<Float>* makeMaskSubLat(const Int& nx, const Int& ny, RO_LatticeIterator<Float>& maskIter, Int& xbeg, Int& xend, Int& ybeg, Int& yend)

Description

Prerequisite

Etymology

ClarkCleanImageSkyModel implements the Clark Clean algorithm. It is derived from SkyModel.

Synopsis

The Clark Clean is an FFT-based clean algorithm. Cleaning is split into major and minor cycles. In a minor cycle, the brightest pixels are cleaned using only the strongest sidelobes (and main lobe) of the PSF. In the major cycle, a fully correct subtraction of the PSF is done for all points accumulated in the minor cycle using an FFT-based convolution for speed.

The Clark Clean is implemented using the ClarkCleanLatModel class.

Masking is optionally performed using a mask image: only points where the mask is non-zero are cleaned. If no mask is specified all points in the inner quarter of the image are cleaned.

Example

See the example for SkyModel.

Motivation

To Do